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Open-Access Journal
Editorial
Sang-Hun Ko, Seung-Myeong Shin 
World J Orthop 3(12):199-203. Published online Dec 18, 2012. doi: 10.5312/wjo.v3.i12.199
Topic Highlight
Review
Antonio Herrera, Antonio Lobo-Escolar, Jesús Mateo, Jorge Gil, Elena Ibarz, Luis Gracia 
World J Orthop 3(12):223-234. Published online Dec 18, 2012. doi: 10.5312/wjo.v3.i12.223
Brief Article
Mir Sadat-Ali, Abid Hussain Gullenpet, Md Quamar Azam, Ammar K Al-Omran 
World J Orthop 3(12):235-238. Published online Dec 18, 2012. doi: 10.5312/wjo.v3.i12.235